nrf9160

Set command

The set command sets the requested Paging Time Window (PTW) parameters. The command configuration is stored to Non-volatile Memory (NVM) approximately every 48 hours and when the modem is set to minimum functionality mode with the +CFUN=0 command.

Active %XPOFWARN warning blocks the storing to NVM.v1.3.x≥2
Note: Use the command with caution. The requested values must be compliant with the Extended Discontinuous Reception (eDRX) cycle values configured using the +CEDRXS command. The modem uses the configured value in eDRX cycle/PTW length negotiation with the network when eDRX is enabled using the +CEDRXS command.

When eDRX parameters are changed using the +CEDRXS command, the PTW value is set as default. The default values can vary between different modem firmware releases. If the application needs to use a certain value, it must be set. If other than the default PTW has to be used, the %XPTW command shall be sent after the +CEDRXS command.

Syntax:

%XPTW=<AcT-type>[,<Requested_ptw_value>]

The set command parameters and their defined values are the following:

<AcT-type>
4 – Evolved Terrestrial Radio Access Network (E-UTRAN) (WB-S1 mode)
5 – E-UTRAN (NB-S1 mode)
<Requested_ptw_value>
String. Half a byte in 4-bit format. The PTW value refers to bits from 8 to 5 of octet 3 of the eDRX parameters information element (see 3GPP TS 24.008, subclause 10.5.5.32). Optional. If not present, the value of the requested AcT-type is reset to the manufacturer-specific default.

LTE-M mode

Bit

4 3 2 1 – PTW length

0 0 0 0 – 1.28 s

0 0 0 1 – 2.56 s

0 0 1 0 – 3.84 s

0 0 1 1 – 5.12 s

0 1 0 0 – 6.4 s

0 1 0 1 – 7.68 s

0 1 1 0 – 8.96 s

0 1 1 1 – 10.24 s

1 0 0 0 – 11.52 s

1 0 0 1 – 12.8 s

1 0 1 0 – 14.08 s

1 0 1 1 – 15.36 s

1 1 0 0 – 16.64 s

1 1 0 1 – 17.92 s

1 1 1 0 – 19.20 s

1 1 1 1 – 20.48 s

Narrowband Internet of Things (NB-IoT) mode

Bit

4 3 2 1 – PTW length

0 0 0 0 – 2.56 s

0 0 0 1 – 5.12 s

0 0 1 0 – 7.68 s

0 0 1 1 – 10.24 s

0 1 0 0 – 12.8 s

0 1 0 1 – 15.36 s

0 1 1 0 – 17.92 s

0 1 1 1 – 20.48 s

1 0 0 0 – 23.04 s

1 0 0 1 – 25.6 s

1 0 1 0 – 28.16 s

1 0 1 1 – 30.72 s

1 1 0 0 – 33.28 s

1 1 0 1 – 35.84 s

1 1 1 0 – 38.4 s

1 1 1 1 – 40.96 s

The following command example sets the requested PTW value:

AT%XPTW=4,"1000"
OK